CVE-2026-20684: An app may bypass Gatekeeper checks in Apple macOS
A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.4. An app may bypass Gatekeeper checks.
AI Analysis
Technical Summary
This vulnerability involves a permissions issue in macOS that allowed an application to bypass Gatekeeper checks, which are designed to prevent untrusted software from running. The issue was resolved by Apple through additional restrictions implemented in macOS Tahoe 26.4. The CVSS score is 3.3 (low), reflecting limited impact and the requirement for local access with user interaction. No known exploits have been reported.
Potential Impact
The impact is limited to a potential integrity issue where an app could bypass Gatekeeper's security checks. There is no impact on confidentiality or availability. Exploitation requires local access and user interaction, reducing the risk level. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix is available in macOS Tahoe 26.4. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-20684: An app may bypass Gatekeeper checks in Apple macOS
Description
A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.4. An app may bypass Gatekeeper checks.
CVSS v3.1
Score 3.3low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a permissions issue in macOS that allowed an application to bypass Gatekeeper checks, which are designed to prevent untrusted software from running. The issue was resolved by Apple through additional restrictions implemented in macOS Tahoe 26.4. The CVSS score is 3.3 (low), reflecting limited impact and the requirement for local access with user interaction. No known exploits have been reported.
Potential Impact
The impact is limited to a potential integrity issue where an app could bypass Gatekeeper's security checks. There is no impact on confidentiality or availability. Exploitation requires local access and user interaction, reducing the risk level. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix is available in macOS Tahoe 26.4. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2025-11-11T14:43:07.873Z
- Cvss Version
- null
- State
- PUBLISHED
Threat ID: 69c333d8f4197a8e3baae872
Added to database: 03/25/2026, 01:01:12 UTC
Last enriched: 05/11/2026, 01:43:50 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 125
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